1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
artcher [175]
3 years ago
10

How many distinct triangles can be drawn using three of the dots below as vertices?

Mathematics
1 answer:
Dima020 [189]3 years ago
4 0

Answer:

18

Step-by-step explanation:

There are 6 dots.  The number of ways we can select 3 from 6 is:

₆C₃ = 6! / (3! (6−3)!)

₆C₃ = 6! / (3! 3!)

₆C₃ = 6×5×4 / (3×2×1)

₆C₃ = 20

However, 2 of these combinations are lines, not triangles.

So there are 18 possible distinct triangles.

You might be interested in
Find the midpoint between the two points (-4,4) and (-2,2)
Ymorist [56]

Answer: (-3,3) is the answer

6 0
3 years ago
Can someone solve this for me with their explanation please?
Lana71 [14]

First you want to subtract 36

so it looks like this \sqrt[4] {(4x+164)^3}=64

Then you want to cancel out the square root 4 by raising that to the 4th power (you must do this to both sides)

{(4x+164)^3}=64^4 which is equal to {(4x+164)^3}=16777216

Then you take the cube root to both sides [tex]\sqrt[3]{(4x+164)^3}=\sqrt[3]{16777216}[tex]

Then you end up with the equation 4x+164=256

Then subtract 164 to both sides

4x=92

then divide 92 by 4

Then you get x=23




7 0
3 years ago
[Quick Answer Needed] Which of the following shows the extraneous solution to the logarithmic equation?
Nitella [24]

Answer:

C

Step-by-step explanation:

Given the logarithmic equation

\log_4x+\log_4(x-3)=\log_4(-7x+21)

First, notice that

x>0\\ \\x-3>0\Rightarrow x>3\\ \\-7x+21>0\Rightarrow 7x

So, there is no possible solutions, all possible solutions will be extraneous.

Solve the equation:

\log_4x+\log_4(x-3)=\log_4x(x-3),

then

\log_4x(x-3)=\log_4(-7x+21)\\ \\x(x-3)=-7x+21\\ \\x^2-3x+7x-21=0\\ \\x^2+4x-21=0\\ \\D=4^2-4\cdot 1\cdot (-21)=16+84=100\\ \\x_{1,2}=\dfrac{-4\pm 10}{2}=-7,\ 3

Hence, x=3 and x=-7 are extraneous solutions

6 0
3 years ago
Determine the slope of the following graph.
evablogger [386]

Answer:

2/1 or 2

Step-by-step explanation:

if you find a spot were the line is line up with the boxes in the graph like at (-2,0) up 2 and right one you will see the line is lined up again and since slope is rise/run its 2/1 or 2

4 0
3 years ago
N 2+ 6n - 16 = 0<br> Solve equation by factoring.
Naily [24]

Answer:

N = -3n+8 Brainlist please :)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • PLease hurry
    9·1 answer
  • Find the slope of the line passing through the points (-1, -1) and (2 , 2).
    5·2 answers
  • The ratio of kangaroos to koalas in the Australian zoo is 6 to 8 . If there are 132 koalas in the zoo how many kangaroos are in
    10·1 answer
  • What is x ? -2x + 3 &lt; 5
    10·1 answer
  • In the school band 6 over 24 of the members play the trumpet and simplest form where fraction of the band play the trumpet
    5·2 answers
  • you have one case of soap bars in there is 150 bars in a case you use 300 bars of soap per day how many cases do you need to ord
    15·1 answer
  • Calcula el valor de A - B, si se sabe que: A=
    5·1 answer
  • A school has 55 students . If 10 of the students are boys , what is the ratio of girls to boys ?
    14·1 answer
  • HELP ME PLS
    12·1 answer
  • 10x − 10y = –20<br> –10x + 4y = –16
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!